:root {
  --navy: #0a1f3d;
  --navy-2: #123d70;
  --blue: #0b68bd;
  --blue-2: #247fc8;
  --blue-soft: #edf4fb;
  --blue-soft-2: #f5f8fb;
  --gold: #f2ad2a;
  --orange: #eb7b24;
  --green: #376f36;
  --green-soft: #edf3e8;
  --ink: #17243a;
  --muted: #5d6b7d;
  --muted-2: #5f6d7f;
  --line: #d8e2ec;
  --line-strong: #c7d4e0;
  --white: #ffffff;
  --footer: #cfdbe7;
  --footer-line: #9eafc0;
  --success: #16794b;
  --danger: #b42318;
  --radius-sm: 11px;
  --radius-md: 16px;
  --radius-lg: 22px;
  --shadow-sm: 0 12px 32px rgba(25, 56, 92, .055);
  --shadow-md: 0 18px 42px rgba(27, 58, 92, .075);
  --max: 1220px;
}

*,
*::before,
*::after { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  color: var(--ink);
  background: var(--white);
  font-family: Inter, ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

img { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
button, input, textarea, select { font: inherit; }
button { cursor: pointer; }
button:disabled { cursor: not-allowed; }

.container {
  width: min(calc(100% - 48px), var(--max));
  margin-inline: auto;
}

.skip-link {
  position: fixed;
  z-index: 2000;
  top: 12px;
  left: 12px;
  padding: 10px 14px;
  border-radius: 8px;
  color: var(--white);
  background: var(--navy);
  transform: translateY(-180%);
}
.skip-link:focus { transform: none; }

/* Header */
.site-header {
  position: sticky;
  z-index: 1000;
  top: 0;
  border-bottom: 1px solid rgba(12, 54, 96, .11);
  background: rgba(255, 255, 255, .965);
  backdrop-filter: blur(14px);
}

.nav-shell {
  min-height: 78px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 28px;
}

.brand-link { flex: 0 0 auto; }
.brand-logo { width: 242px; height: auto; }

.site-nav {
  display: flex;
  align-items: center;
  gap: 30px;
}

.site-nav a {
  position: relative;
  padding: 27px 0 24px;
  color: #455166;
  font-size: 15px;
  font-weight: 690;
}

.site-nav a:hover,
.site-nav a:focus-visible,
.site-nav a[aria-current="page"] { color: var(--navy); }

.site-nav a[aria-current="page"]::after {
  content: "";
  position: absolute;
  right: 0;
  bottom: 0;
  left: 0;
  height: 3px;
  border-radius: 3px;
  background: var(--orange);
}

.site-nav .nav-contact {
  margin-left: 2px;
  padding: 11px 18px;
  border: 1px solid #c8d4e0;
  border-radius: 10px;
}

.site-nav .nav-contact[aria-current="page"] {
  border-color: #9fb7ce;
  background: var(--blue-soft);
}
.site-nav .nav-contact[aria-current="page"]::after { display: none; }

.menu-button {
  display: none;
  width: 44px;
  height: 44px;
  align-items: center;
  justify-content: center;
  border: 1px solid #c7d4e0;
  border-radius: 10px;
  color: var(--navy);
  background: var(--white);
}

.menu-button span,
.menu-button span::before,
.menu-button span::after {
  display: block;
  width: 20px;
  height: 2px;
  border-radius: 2px;
  background: currentColor;
  transition: transform .18s ease, opacity .18s ease;
}

.menu-button span { position: relative; }
.menu-button span::before,
.menu-button span::after {
  content: "";
  position: absolute;
  left: 0;
}
.menu-button span::before { top: -6px; }
.menu-button span::after { top: 6px; }
.menu-button[aria-expanded="true"] span { background: transparent; }
.menu-button[aria-expanded="true"] span::before { top: 0; transform: rotate(45deg); }
.menu-button[aria-expanded="true"] span::after { top: 0; transform: rotate(-45deg); }

/* Typography / shared */
.eyebrow {
  display: flex;
  align-items: center;
  gap: 10px;
  margin: 0 0 16px;
  color: var(--blue);
  font-size: 13px;
  font-weight: 850;
  letter-spacing: .13em;
  text-transform: uppercase;
}

.eyebrow::before {
  content: "";
  width: 30px;
  height: 3px;
  border-radius: 4px;
  background: linear-gradient(90deg, var(--blue), var(--gold));
}

h1, h2, h3, p { text-wrap: pretty; }

.hero h1,
.page-hero h1 {
  margin: 0;
  color: var(--navy);
  line-height: 1.02;
  letter-spacing: -.045em;
}

.hero h1 { font-size: clamp(48px, 5vw, 70px); }
.hero h1 span { color: var(--blue); }
.hero h1 em { color: #9a6200; font-style: normal; }

.page-hero h1 {
  max-width: 1000px;
  font-size: clamp(43px, 5vw, 64px);
}

.button {
  min-height: 50px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 9px;
  padding: 0 20px;
  border: 1px solid transparent;
  border-radius: var(--radius-sm);
  font-weight: 780;
  transition: transform .16s ease, box-shadow .16s ease, background .16s ease, border-color .16s ease, opacity .16s ease;
}

.button:hover:not(:disabled) { transform: translateY(-1px); }

.button-primary {
  color: var(--white);
  background: var(--navy);
  box-shadow: 0 12px 30px rgba(10, 31, 61, .14);
}

.button-primary:hover:not(:disabled) { background: #0d2b50; }

.button-secondary {
  color: var(--navy);
  border-color: #cbd7e3;
  background: var(--white);
}

.button-secondary:hover:not(:disabled) { border-color: #aebfd0; }

.button-gold {
  color: var(--navy);
  background: var(--gold);
}

.button:disabled {
  color: #8592a3;
  border-color: #d5dde6;
  background: #e8edf2;
  box-shadow: none;
  opacity: 1;
}

.text-link {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  color: var(--blue);
  font-weight: 760;
}

.text-link:hover { text-decoration: underline; text-underline-offset: 4px; }

.badge {
  display: inline-flex;
  padding: 6px 9px;
  border-radius: 999px;
  color: var(--blue);
  background: #edf4fb;
  font-size: 11px;
  font-weight: 850;
  letter-spacing: .055em;
  text-transform: uppercase;
}

.tag-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.tag {
  padding: 7px 10px;
  border: 1px solid #d7e0e9;
  border-radius: 999px;
  color: #4e6174;
  background: #fbfcfd;
  font-size: 12px;
  font-weight: 720;
}

/* Hero */
.hero {
  border-bottom: 1px solid #dce6f0;
  background: var(--blue-soft);
}

.hero-inner {
  display: grid;
  grid-template-columns: 1.05fr .95fr;
  gap: 70px;
  align-items: center;
  padding: 92px 0 88px;
}

.hero-copy {
  max-width: 720px;
  margin: 24px 0 0;
  color: #536276;
  font-size: 18px;
}

.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 32px;
}

.hero-proof {
  display: flex;
  flex-wrap: wrap;
  gap: 17px;
  margin-top: 34px;
  color: #5f6d7f;
  font-size: 14px;
}

.hero-proof span {
  display: flex;
  align-items: center;
  gap: 8px;
}

.hero-proof span::before {
  content: "";
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--gold);
}

.engineering-board {
  padding: 27px;
  border: 1px solid #d6e1eb;
  border-radius: 24px;
  background: var(--white);
  box-shadow: var(--shadow-md);
}

.board-title {
  padding-bottom: 18px;
  border-bottom: 1px solid #e4ebf2;
  text-align: center;
}

.board-title strong {
  display: block;
  color: var(--navy);
  font-size: 22px;
}

.board-title span {
  display: block;
  margin-top: 4px;
  color: #5f6d7f;
  font-size: 13px;
}

.board-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  margin-top: 17px;
}

.capability-block {
  min-height: 103px;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 18px;
  border: 1px solid #dbe4ed;
  border-radius: 14px;
  background: #fbfdff;
  text-align: center;
}

.capability-block strong {
  display: block;
  color: #243a57;
  font-size: 15px;
  line-height: 1.3;
}

.capability-block small {
  display: block;
  margin-top: 5px;
  color: #5f6d7f;
  font-size: 12px;
}

.architecture-strip {
  margin-top: 12px;
  padding: 15px 18px;
  border-radius: 13px;
  color: var(--white);
  background: var(--navy);
  text-align: center;
  font-size: 14px;
  font-weight: 780;
}